sysadmin/ipxe
1
0
Fork 0
mirror of https://github.com/ipxe/ipxe synced 2025-12-20 03:55:46 +03:00
Code Issues Packages Projects Releases Wiki Activity

[efi] Mark SNP devices as children of EFI PCI device

Browse Source 
Re-open the EFI_PCI_IO_PROTOCOL specifying an Attributes value of
EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER.  This causes the SNP devices to
be marked as children of the EFI PCI device (as shown in the "devtree"
command).

On at least one IBM blade system, this is required in order to have
the relevant drivers automatically attach to the SNP controller at
device creation time.

Signed-off-by: Michael Brown <mcb30@ipxe.org>
This commit is contained in:
Michael Brown
2011-03-15 16:55:04 +00:00
parent 23daab14a6
commit b9326c3655
3 changed files with 70 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

15
src/interface/efi/efi_snp.c
View File

@@ -46,6 +46,8 @@ struct efi_snp_device {
struct list_head list;
/** The underlying iPXE network device */
struct net_device *netdev;
/** The underlying EFI PCI device */
struct efi_pci_device *efipci;
/** EFI device handle */
EFI_HANDLE handle;
/** The SNP structure itself */
@@ -795,6 +797,7 @@ static int efi_snp_probe ( struct net_device *netdev ) {
goto err_alloc_snp;
}
snpdev->netdev = netdev_get ( netdev );
snpdev->efipci = efipci;
/* Sanity check */
if ( netdev->ll_protocol->ll_addr_len > sizeof ( EFI_MAC_ADDRESS ) ) {
@@ -865,6 +868,15 @@ static int efi_snp_probe ( struct net_device *netdev ) {
goto err_install_protocol_interface;
}
/* Add as child of PCI device */
if ( ( efirc = efipci_child_add ( efipci, snpdev->handle ) ) != 0 ) {
DBGC ( snpdev, "SNPDEV %p could not become child of " PCI_FMT
": %s\n", snpdev, PCI_ARGS ( &efipci->pci ),
efi_strerror ( efirc ) );
rc = EFIRC_TO_RC ( efirc );
goto err_efipci_child_add;
}
/* Add to list of SNP devices */
list_add ( &snpdev->list, &efi_snp_devices );
@@ -872,6 +884,8 @@ static int efi_snp_probe ( struct net_device *netdev ) {
snpdev, netdev->name, snpdev->handle );
return 0;
efipci_child_del ( efipci, snpdev->handle );
err_efipci_child_add:
bs->UninstallMultipleProtocolInterfaces (
snpdev->handle,
&efi_simple_network_protocol_guid, &snpdev->snp,
@@ -916,6 +930,7 @@ static void efi_snp_remove ( struct net_device *netdev ) {
}
/* Uninstall the SNP */
efipci_child_del ( snpdev->efipci, snpdev->handle );
list_del ( &snpdev->list );
bs->UninstallMultipleProtocolInterfaces (
snpdev->handle,